Mystical Wonders Discussion Group This is the #1 spiritual / mystical group in the world that encompasses literally all fields at one forum with tons of archived discussions and thousands members worldwide! Existing since 2003.
Contacting one's guides/guardians/helpers is one of the easiest things to learn, yet one of the most complex. I could write a blog post on it that would take more space than my one on motes does, just explaining how to contact them and also the "laws" associated with them.
But here's a tip. Don't use your voice. Use your thoughts. Not only is this safer, but it helps build telepathic power.